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Jet Injector
A jet injector is a type of medical injecting syringe device used for a method of drug delivery known as jet injection, in which a narrow, high-pressure stream of liquid penetrates the outermost layer of the skin (stratum corneum) to deliver medication to targeted underlying tissues of the epidermis or dermis ("cutaneous" injection, also known as classical "intradermal" injection), fat ("subcutaneous" injection), or muscle ("intramuscular" injection). The jet stream is usually generated by the pressure of a piston in an enclosed liquid-filled chamber. The piston is usually pushed by the release of a compressed metal spring, although investigational devices may use piezoelectric effects and other novel technologies to pressurize the liquid in the chamber. The springs of currently-marketed and historical devices may be compressed by operator muscle power, hydraulic fluid, built-in battery-operated motors, compressed air or gas, and other means. Gas-powered and hydraulically powere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lactate Dehydrogenase Elevating Virus
Lactate dehydrogenase elevating virus (LDV) constitutes the species ''Gamamaarterivirus lacdeh'' which is part of the family ''Arteriviridae'' and order '' Nidovirales''. The order ''Nidovirales'' also includes the family of coronaviruses. Arteriviruses infect macrophages in animals and cause a variety of diseases. LDV specifically causes lifelong persistent viremia in mice, but does not harm the host and only slightly harms the immune system. The main clinical sign is an increased level of the plasma enzyme lactate dehydrogenase (LDH). LDV has a remarkably narrow cell type specificity, meaning nothing homologous with LDV in mice has been found in another species. Discovery LDV was discovered in 1960 by Dr. Vernon Riley and his colleagues while they were working with plasma enzymes in tumor-bearing mice. They found that many types of transplantable tumors caused a five to tenfold increase in the plasma lactate dehydrogenase (LDH) activity within three days of the transplantation. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aaron Ismach
Aaron Ismach (1920 in Brooklyn Brooklyn () is a borough of New York City, coextensive with Kings County, in the U.S. state of New York. Kings County is the most populous county in the State of New York, and the second-most densely populated county in the United States, be ..., New York (state), New York - 2007) was an American scientist and inventor, who made a significative contribution to smallpox eradication by inventing the Subcutaneous injection, subcutaneous jet injector. Biography Born in Brooklyn, he earned a bachelor's degree in chemical engineering from the City College of New York, College of the City of New York in 1943, then a master's degree from the New York University Tandon School of Engineering, Polytechnic Institute of Brooklyn in 1953 and a MEE from the New York University in 1956. In the early 1960, Ismach developed a jet injector with an hydraulic pump operated by a foot pedal, known as the Ped-O-Jet. In 1964, Aaron Ismach invented an intradermal no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Andrew Hingson
Robert Andrew Hingson (April 13, 1913 – October 9, 1996) was an American physician who served as the first professor of anesthesiology at the University of Tennessee College of Medicine. Hingson developed multiple medical devices, including the jet injector for inoculations. He founded the Brother's Brother Foundation, an organization which provides vaccinations and medical assistance to impoverished regions. His awards include the Labat Award from the American Society of Regional Anesthesia and the President's Volunteer Action Award. Early life Robert Andrew Hingson was born on April 13, 1913 in Anniston, Alabama to Eloree Elizabeth Haynes Hingson and Robert Andrew Hingson. Hingson demonstrated a concern for suffering at an early age. Because of this, his parents encouraged him to go into the ministry. Instead, he decided to be a physician. Medical career After receiving his medical degree from the Emory University School of Medicine in 1938, Hingson interned at the U.S. Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JAMA (journal)
''The Journal of the American Medical Association'' (''JAMA'') is a peer-reviewed medical journal published 48 times a year by the American Medical Association. It publishes original research, reviews, and editorials covering all aspects of biomedicine. The journal was established in 1883 with Nathan Smith Davis as the founding editor. Kirsten Bibbins-Domingo of the University of California San Francisco became the journal editor-in-chief on July 1, 2022, succeeding Howard Bauchner of Boston University. History The journal was established in 1883 by the American Medical Association and superseded the ''Transactions of the American Medical Association''. ''Councilor's Bulletin'' was renamed the ''Bulletin of the American Medical Association'', which later was absorbed by the ''Journal of the American Medical Association''. In 1960, the journal obtained its current title, ''JAMA: The Journal of the American Medical Association''. The journal is commonly referred to as ''JAMA''. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-called compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Diesel engines work by compressing only air, or air plus residual combustion gases from the exhaust (known as exhaust gas recirculation (EGR)). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel is une ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fuel Injector
Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of an injector. This article focuses on fuel injection in reciprocating piston and Wankel rotary engines. All compression-ignition engines (e.g. diesel engines), and many spark-ignition engines (i.e. petrol engines, such as Otto or Wankel), use fuel injection of one kind or another. Mass-produced diesel engines for passenger cars (such as the Mercedes-Benz OM 138) became available in the late 1930s and early 1940s, being the first fuel-injected engines for passenger car use. In passenger car petrol engines, fuel injection was introduced in the early 1950s and gradually gained prevalence until it had largely replaced carburettors by the early 1990s. The primary difference between carburetion and fuel injection is that fuel injection atomizes the fuel through a small nozzle under high pressure, while a carburettor relies on suction created by intake a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-called compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Diesel engines work by compressing only air, or air plus residual combustion gases from the exhaust (known as exhaust gas recirculation (EGR)). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases the air temperature inside the cylinder to such a high degree that atomised diesel fuel injected into the combustion chamber ignites. With the fuel being injected into the air just before combustion, the dispersion of the fuel is une ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grease Gun (tool)
A grease gun is a common workshop and garage tool used for lubrication. The purpose of the grease gun is to apply lubricant through an aperture to a specific point, usually from a grease cartridge to a grease fitting or 'nipple'. The channels behind the grease nipple lead to where the lubrication is needed. The aperture may be of a type that fits closely with a receiving aperture on any number of mechanical devices. The close fitting of the apertures ensures that lubricant is applied only where needed. There are four types of grease gun: #Hand-powered, where the grease is forced from the aperture by back-pressure built up by hand-cranking the trigger mechanism of the gun, which applies pressure to a spring mechanism behind the lubricant, thus forcing grease through the aperture. #Hand-powered, where there is no trigger mechanism, and the grease is forced through the aperture by the back-pressure built up by pushing on the butt of the grease gun, which slides a piston through the bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Pressure Injection Injury
A high pressure injection injury is an injury caused by high-pressure injection of oil, grease, diesel fuel, gasoline, solvents, water, or even air, into the body. The most common causes are accidents with grease guns, paint sprayers, and pressure washers, but working on diesel and gasoline engine fuel injection systems as well as pinhole leaks in pressurized hydraulic lines can also cause this injury. Additionally, there is at least one known case of deliberate self-injection with a grease gun. Although the initial wound often seems minor, the unseen, internal damage can be severe. With hydraulic fluids, paint, and detergents, these injuries are extremely serious as most hydraulic fluids and organic solvents are highly toxic. Delay in surgical treatment often leads to amputations or death. But even with pure water or air, these injuries cause compartment syndrome Compartment syndrome is a condition in which increased pressure within one of the body's anatomical compartm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ASC Leiden - Coutinho Collection - 15 20 - Life In Campada, Guinea-Bissau - Vaccinations - 1973
ASC may refer to: Educational institutions * Anglican Schools Commission, Australia * Andres Soriano Colleges of Bislig, located in Surigao del Sur, Philippines * Agnes Scott College, Decatur, Georgia Organizations Australia * Australian Singing Competition * Australian Sports Commission * ASC Pty Ltd (former Australian Submarine Corporation), a naval shipbuilder * ASC Shipbuilding established by ASC Pty Ltd but now a subsidiary of BAE Systems Australia Canada * Advertising Standards Canada * ''Agence spatiale canadienne'', the Canadian Space Agency * Association des Scouts du Canada United Kingdom * Amalgamated Society of Core Makers of Great Britain and Ireland, former trade union * Army Service Corps, the name of the Royal Army Service Corps between 1870 and 1918 * Association of Speakers Clubs, a group of public speaking clubs United States * Accounting Standards Codification, an official publication of financial accounting standards known as Generally Accepted Accounting Pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Typhus Shot
Typhus, also known as typhus fever, is a group of infectious diseases that include epidemic typhus, scrub typhus, and murine typhus. Common symptoms include fever, headache, and a rash. Typically these begin one to two weeks after exposure. The diseases are caused by specific types of bacterial infection. Epidemic typhus is due to ''Rickettsia prowazekii'' spread by body lice, scrub typhus is due to ''Orientia tsutsugamushi'' spread by chiggers, and murine typhus is due to ''Rickettsia typhi'' spread by fleas. Vaccines have been developed, but none are commercially available. Prevention is achieved by reducing exposure to the organisms that spread the disease. Treatment is with the antibiotic doxycycline. Epidemic typhus generally occurs in outbreaks when poor sanitary conditions and crowding are present. While once common, it is now rare. Scrub typhus occurs in Southeast Asia, Japan, and northern Australia. Murine typhus occurs in tropical and subtropical areas of the worl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
